Large-pipe-diameter electromagnetic flowmeter

Abstract

The utility model relates to the technical field of flow meters, and provides a large-pipe-diameter electromagnetic flow meter which comprises a monitoring assembly, the monitoring assembly comprises a flow guide pipe, magnetic poles, an inner lining layer and electrodes, the inner lining layer is arranged on the inner side of the flow guide pipe, the magnetic poles are evenly arranged on the outer side of the inner lining layer, and the electrodes are evenly fixed in the flow guide pipe on the outer side of the inner lining layer. Through the arrangement of the sealing structure, during installation and when the installation plate is attached to other assemblies, the magnetic pole and the other assemblies are mutually fixed by rotating the installation bolt, at the moment, the installation bolt is rotated forcibly, so that the second sealing ring is extruded, the deformation groove deforms, the side edge of the second sealing ring extends outwards, and the magnetic pole is fixed to the other assemblies. The sealing area and sealing tightness can be increased, the second sealing ring can abut against the outer side walls of other assemblies when being extruded, the sealing performance is improved, the good sealing function of the device is achieved, and the sealing performance of the electromagnetic flowmeter in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a large-diameter electromagnetic flow meter. Background Art

[0002] With the acceleration of the industrialization process and the rapid development of large industrial projects in industries such as petrochemical, power, water treatment, iron and steel, and metallurgy, the demand for flow measurement is increasing continuously, and higher requirements are put forward for the accuracy and stability of measurement. The large-diameter electromagnetic flow meter has become an important tool for flow measurement in these industries due to its high precision, wide range, corrosion resistance and other characteristics;

[0003] For this reason, the patent with the publication number of CN220649621U discloses a large-diameter electromagnetic flow meter, which includes a through pipe with flanges at both ends and an electrical bin movably connected thereto. A pair of installed magnetic poles and a pair of installed electrodes are arranged in the through pipe. A lining layer is arranged on the inner wall of the through pipe, and the inner diameter of the lining layer ≥ 300 mm. The through pipe and the electrical bin are connected through a movable conductive device. Both the magnetic poles and the electrodes are connected to the circuit arranged in the electrical bin through the movable conductive device. The electrical bin can slide and rotate along the outer wall of the through pipe; the movable conductive device includes a conductive slide rail closely arranged around the through pipe, a conductive slider is movably connected to the conductive slide rail, a rotating conductive platform is movably connected to the conductive slider, and the rotating conductive platform is connected to the electrical bin; when the installation position and angle of the large-diameter electromagnetic flow meter of the utility model are limited, the position and orientation of the meter head display can be flexibly adjusted, which is convenient for installation and use.

[0004] After the existing electromagnetic flow meter is installed, the sealing performance of the installation and connection part will be reduced after long-term use, and the solution will leak. Therefore, it is necessary to design an electromagnetic flow meter with good sealing performance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a large-diameter electromagnetic flow meter to solve the defect that after the existing electromagnetic flow meter is installed, the sealing performance of the installation and connection part will be reduced after long-term use, resulting in solution leakage.

[0006] To solve the above technical problems, the utility model provides the following technical solution: a large-diameter electromagnetic flow meter, including a monitoring component;

[0007] The monitoring component includes a diversion pipe, magnetic poles, a lining layer and electrodes. A lining layer is arranged on the inner side of the diversion pipe. Magnetic poles are evenly arranged on the outer side of the lining layer. Electrodes are evenly fixed inside the diversion pipe on the outer side of the lining layer;

[0008] Both ends of the diversion pipe are fixed with installation structures, and the installation structures include installation plates, installation holes and installation bolts;

[0009] A sealing structure is fixedly provided on one side of the mounting plate away from the diversion pipe. The sealing structure includes a first sealing ring, a second sealing ring and a deformation groove. The first sealing rings are all fixedly provided on one side of the mounting plate away from the diversion pipe. A second sealing ring is arranged on the outer side of each first sealing ring, and a deformation groove is formed in the interior of each second sealing ring;

[0010] A converter is fixedly provided at the top end of the diversion pipe, and an anti-corrosion structure is arranged on the inner side of the inner lining layer.

[0011] Furthermore, the magnetic poles are symmetrically distributed on both sides of the diversion pipe, the outer wall of the magnetic pole is fixedly connected to the inner wall of the diversion pipe, and the electrodes are symmetrically distributed on both sides of the diversion pipe.

[0012] Furthermore, the mounting plates are fixedly provided at both ends of the diversion pipe. Mounting holes are evenly formed in the interior of the mounting plates, and mounting bolts are arranged in the interior of the mounting holes.

[0013] Furthermore, the mounting plates are symmetrically distributed at both ends of the diversion pipe, and the mounting holes are equidistantly distributed in the interior of the mounting plates.

[0014] Furthermore, the inner diameter dimension of the first sealing ring is larger than the inner diameter dimension of the mounting plate, and the first sealing ring and the deformation groove are symmetrically distributed at both ends of the diversion pipe.

[0015] Furthermore, the anti-corrosion structure includes an adhesive layer, a first anti-corrosion layer and a second anti-corrosion layer. The adhesive layer is arranged on the inner wall of the inner lining layer, a first anti-corrosion layer is fixedly provided on the inner wall of the adhesive layer, and a second anti-corrosion layer is fixedly provided on the inner wall of the first anti-corrosion layer.

[0016] Furthermore, the first anti-corrosion layer is an epoxy resin coating, and the second anti-corrosion layer is a polyethylene coating.

[0017] The advantages of the large-diameter electromagnetic flowmeter provided by the present utility model are as follows:

[0018] By providing a sealing structure, during installation, when the mounting plate is in contact with other components, rotate the mounting bolt to fix the magnetic pole and other components to each other. At this time, rotate the mounting bolt forcefully, so that the second sealing ring is extruded, and the deformation groove will deform, causing the side edge of the second sealing ring to extend outwards, which can increase the sealing area and tightness during sealing. The second sealing ring will be in contact with the outer side wall of other components under extrusion, increasing the sealing performance, realizing the function of good sealing of the device, and improving the sealing performance of the electromagnetic flowmeter during use;

[0019] By setting up an installation structure, when installing, align the mounting plate with other components and rotate the mounting bolts to fix the mounting plate and other components, realizing the function that the device is easy to install and improving the convenience of the large-diameter electromagnetic flowmeter during use;

[0020] By setting up an anti-corrosion structure, the first anti-corrosion layer is an epoxy resin coating, which can form a dense coating on the inner wall of the pipeline and can serve as a physical barrier to prevent the corrosion medium from contacting the metal, thus playing an anti-corrosion role. The second anti-corrosion layer is a polyethylene coating, which can form a protective layer on the inner wall of the pipeline and improve the corrosion resistance of the pipeline, realizing the function that the device has anti-corrosion and improving the service life of the large-diameter electromagnetic flowmeter. Brief Description of the Drawings

[0021] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is the front view sectional structure schematic diagram of the present utility model;

[0023] Figure 3 is the side view sectional structure schematic diagram of the present utility model;

[0024] Figure 4 is the side view sectional structure schematic diagram of the present utility model;

[0025] Figure 5 is the top view sectional structure schematic diagram of the present utility model.

[0026] Explanation of the reference numerals in the drawings: 1. Monitoring component; 11. Diversion pipe; 12. Magnetic pole; 13. Lining layer; 14. Electrode; 2. Installation structure; 21. Mounting plate; 22. Mounting hole; 23. Mounting bolt; 3. Sealing structure; 31. First sealing ring; 32. Second sealing ring; 33. Deformation groove; 4. Converter; 5. Anti-corrosion structure; 51. Adhesive layer; 52. First anti-corrosion layer; 53. Second anti-corrosion layer. Detailed Description of the Preferred Embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 - 5 , the large-diameter electromagnetic flowmeter provided by the present utility model includes a monitoring component 1.

[0029] Refer toFigures 1 - 5 The monitoring component 1 includes a guide tube 11, a magnetic pole 12, an inner lining layer 13 and an electrode 14. The inner lining layer 13 is arranged on the inner side of the guide tube 11, and the magnetic poles 12 are evenly arranged on the outer side of the inner lining layer 13. The electrodes 14 are evenly fixed inside the guide tube 11 outside the inner lining layer 13. The magnetic poles 12 are symmetrically distributed on both sides of the guide tube 11, and the outer wall of the magnetic pole 12 is fixedly connected to the inner wall of the guide tube 11. The electrodes 14 are symmetrically distributed on both sides of the guide tube 11. The two ends of the guide tube 11 are fixed with a mounting structure 2. The mounting structure 2 includes a mounting plate 21, a mounting hole 22 and a mounting bolt 23. The mounting plates 21 are fixed to both ends of the guide tube 11. The mounting holes 22 are evenly opened inside the mounting plate 21, and the mounting bolts 23 are arranged inside the mounting holes 22. The mounting plates 21 are symmetrically distributed on both ends of the guide tube 11, and the mounting holes 22 are evenly distributed inside the mounting plate 21.

[0030] During installation, align the mounting plate 21 with other components, rotate the mounting bolt 23, and fix the mounting plate 21 and other components. The electrodes 14 are installed on both sides of the pipeline to detect the induced potential. The magnetic poles 12 will generate a strong magnetic field inside the flow guide tube 11. When the liquid flows vertically in the magnetic field and cuts the magnetic induction lines, an induced potential will be generated on the electrodes 14 on both sides of the flow guide tube 11. This induced potential is proportional to the flow rate of the liquid. By measuring this induced potential, the flow rate of the liquid can be calculated.

[0031] Reference Figures 1 - 3 and Figure 5 A sealing structure 3 is fixed on the side of the mounting plate 21 away from the guide tube 11. The sealing structure 3 includes a first sealing ring 31, a second sealing ring 32 and a deformation groove 33. The first sealing ring 31 is fixed on the side of the mounting plate 21 away from the guide tube 11. The second sealing ring 32 is arranged on the outer side of the first sealing ring 31. The deformation groove 33 is opened inside the second sealing ring 32. The inner diameter of the first sealing ring 31 is larger than the inner diameter of the mounting plate 21. The first sealing ring 31 and the deformation groove 33 are symmetrically distributed at both ends of the guide tube 11.

[0032] During installation, when the mounting plate 21 and other components are fitted together, the mounting bolt 23 is rotated to fix the magnetic pole 12 and other components to each other. At this time, the mounting bolt 23 is rotated forcefully to squeeze the second sealing ring 32, and the deformation groove 33 is deformed, so that the side of the second sealing ring 32 extends outward, which can increase the sealing area and the tightness of the sealing. The second sealing ring 32 is squeezed and contacts the outer side walls of other components, thereby increasing the sealing performance.

[0033] Reference Figure 2 , Figure 4 and Figure 5, a converter 4 is fixed to the top end of the diversion pipe 11, and an anti-corrosion structure 5 is arranged inside the inner lining layer 13. The anti-corrosion structure 5 includes an adhesive layer 51, a first anti-corrosion layer 52 and a second anti-corrosion layer 53. The adhesive layer 51 is arranged on the inner wall of the inner lining layer 13, the first anti-corrosion layer 52 is fixed to the inner wall of the adhesive layer 51, and the second anti-corrosion layer 53 is fixed to the inner wall of the first anti-corrosion layer 52. The first anti-corrosion layer 52 is an epoxy resin coating, and the second anti-corrosion layer 53 is a polyethylene coating.

[0034] The first anti-corrosion layer 52 is an epoxy resin coating, which can form a dense coating on the inner wall of the pipeline and can serve as a physical barrier to prevent the corrosion medium from contacting the metal, thus playing an anti-corrosion role. The second anti-corrosion layer 53 is a polyethylene coating, which can form a protective layer on the inner wall of the pipeline and improve the corrosion resistance of the pipeline.

[0035] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Large-diameter electromagnetic flowmeter, comprising a monitoring component (1); Characterized in that: The monitoring component (1) includes a flow guide pipe (11), magnetic poles (12), a lining layer (13) and electrodes (14). The lining layer (13) is arranged inside the flow guide pipe (11). The magnetic poles (12) are evenly arranged outside the lining layer (13). The electrodes (14) are evenly fixed inside the flow guide pipe (11) outside the lining layer (13); Both ends of the flow guide pipe (11) are fixed with mounting structures (2). The mounting structures (2) include mounting plates (21), mounting holes (22) and mounting bolts (23); Sealing structures (3) are fixed on the sides of the mounting plates (21) away from the flow guide pipe (11). The sealing structures (3) include first sealing rings (31), second sealing rings (32) and deformation grooves (33). The first sealing rings (31) are fixed on the sides of the mounting plates (21) away from the flow guide pipe (11). The second sealing rings (32) are arranged outside the first sealing rings (31). Deformation grooves (33) are opened inside the second sealing rings (32); A converter (4) is fixed at the top of the flow guide pipe (11), and an anti-corrosion structure (5) is arranged inside the lining layer (13).

2. The large-diameter electromagnetic flowmeter according to claim 1, wherein: The magnetic poles (12) are symmetrically distributed on both sides of the flow guide pipe (11). The outer walls of the magnetic poles (12) are fixedly connected to the inner walls of the flow guide pipe (11). The electrodes (14) are symmetrically distributed on both sides of the flow guide pipe (11).

3. The large-diameter electromagnetic flowmeter according to claim 1, wherein: The mounting plates (21) are fixed at both ends of the flow guide pipe (11). Mounting holes (22) are evenly opened inside the mounting plates (21). Mounting bolts (23) are arranged inside the mounting holes (22).

4. The large-diameter electromagnetic flowmeter according to claim 3, characterized in that: The mounting plates (21) are symmetrically distributed at both ends of the flow guide pipe (11). The mounting holes (22) are equidistantly distributed inside the mounting plates (21).

5. The large-diameter electromagnetic flowmeter according to claim 1, characterized in that: The inner diameter dimension of the first sealing ring (31) is larger than the inner diameter dimension of the mounting plate (21). The first sealing ring (31) and the deformation groove (33) are symmetrically distributed at both ends of the flow guide pipe (11).

6. The large-diameter electromagnetic flowmeter according to claim 1, wherein: The anti-corrosion structure (5) includes an adhesive layer (51), a first anti-corrosion layer (52) and a second anti-corrosion layer (53). The adhesive layer (51) is arranged on the inner wall of the lining layer (13). The first anti-corrosion layer (52) is fixed on the inner wall of the adhesive layer (51). The second anti-corrosion layer (53) is fixed on the inner wall of the first anti-corrosion layer (52).

7. The large-diameter electromagnetic flowmeter according to claim 6, characterized in that: The first anti-corrosion layer (52) is an epoxy resin coating, and the second anti-corrosion layer (53) is a polyethylene coating.

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